Holosun HE407K X2 Green Dot Sight 2 MOA Dot
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The Holosun HE407K X2, part HE407K-GR X2, is a 1x open-reflex sight on the Holosun K footprint, projecting a single 6 MOA green dot from a 540nm emitter.
Green reads brighter to the human eye than red at the same output, and a 6 MOA dot is the one the eye finds first as the sight comes up. On a small optic, that combination is what makes it quick.
The body is 7075-T6 aluminium at 1 oz, measuring 1.6 x 0.98 x 0.95 in with a 0.58 x 0.77 in window, rated IP67 and tested to 5000G. A CR1632 cell sits in a side-loading tray so it can be swapped without breaking zero, rated up to 50,000 hours, and Shake Awake sleeps the dot when the gun has been still.
Twelve brightness settings cover the range, ten for daylight and two for night vision, with 1 MOA clicks and plus or minus 30 MOA of travel. The X2 generation adds Lock Mode, so the setting cannot be nudged in a holster or a bag. Two honest limits: there is no solar backup on this model, and a 6 MOA dot that finds the target quickly also covers more of it, so shooters who want a finer aiming point should look elsewhere in the range.
Slides and mounts cut to the K footprint. For a full-size slide on the RMR pattern with solar backup, the HE407C X2 Green is the equivalent, an enclosed green option is the HE509T X2 Green, and the competition body is the HE407COMP Green 6 MOA. The rest are in Green Dot Sights.
| Type | Open reflex green dot sight, 1x |
|---|---|
| Reticle | 6 MOA green dot |
| Emitter | 540nm green |
| Footprint | Holosun K |
| Window size | 0.58 x 0.77 in |
| Illumination | 12 settings — 10 daylight, 2 night vision |
| Click value | 1 MOA |
| Adjustment range | Plus or minus 30 MOA |
| Battery | CR1632 side tray, up to 50,000 hours |
| Power management | Shake Awake, X2 Lock Mode |
| Solar | Not fitted |
| Housing | 7075-T6 aluminium, IP67, 5000G |
| Weight | 1 oz |
| MPN | HE407K-GR X2 |
A bold green dot on a small footprint, with the battery reachable from the side. Order the HE407K X2 today — imported from the USA with all duties paid by us and dispatched tracked from the UK in 7–10 business days, with nothing to pay on delivery.
Explore more: Green Dot Sights, HE407C X2 Green or browse all Holosun.
| Brand | Holosun |
|---|---|
| Part no. | HE407K-GR X2 |
| Category | Red Dot Sight |
| Barcode | 810047071372 |
£5 tracked UK delivery on every order via Royal Mail Tracked 24. Our products are ordered in from the manufacturer rather than held in UK stock, so please allow 7 to 10 business days (Monday to Friday, excluding bank holidays) from the date of your order for it to reach you. Tracking details are emailed on dispatch. UK delivery only.
You have 30 days from receiving your order to cancel it for any reason, then 14 days to send it back unused and in its original packaging. Faulty, damaged or incorrect items are replaced or refunded and we cover reasonable return postage. Refunds go back to your original payment method within 14 days of receiving the return.
7 to 10 business days from the date of your order. Every order is sent Royal Mail Tracked for a flat £5 and you receive tracking details by email when it is dispatched.
Yes. We list only genuine parts and optics from the brands shown, ordered in from the manufacturer for your order.
Compatibility notes on this page come from the manufacturer. If you are unsure, email us with your make and model before ordering and we will check rather than guess.
Yes. Bundle & Save applies automatically in your basket: 5% off when you buy 2 items, 10% off at 3 items and 15% off at 4 or more. It works across the whole range, so you can mix and match, and there is no code to enter.
Yes — you have 30 days from delivery to cancel for any reason, as long as the item is unused and in its original packaging. See our returns policy for the details.
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